Home / 1,098,325.60-1,645,738.80-814,890.40

Finding the Fourth Proportional to 1,098,325.60, 1,645,738.80 and 814,890.40

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Solution

The fourth proportional to 1,098,325.60, 1,645,738.80 and 814,890.40 is: 1,221,037.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,325.60 : 1,645,738.80 = 814,890.40 : x
  2. Step 2: Convert to fraction form
    1,098,325.60/1,645,738.80 = 814,890.40/x
  3. Step 3: Cross multiply
    1,098,325.60x = 1,645,738.80 × 814,890.40
  4. Step 4: Simplify right side
    1,098,325.60x = 1,341,096,749,027.52
  5. Step 5: Solve for x
    x = 1,341,096,749,027.52/1,098,325.60
  6. Step 6: Final answer
    x = 1,221,037.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.